a survey of tissue oxygenation differences in intensive care patients with blood transfusion

a survey of tissue oxygenation differences in intensive care patients with blood transfusion     haghighimoghadamy [1] *, valizadeh ma [2] , feizi a [3]     received: 26 dec, 2011 accepted: 7 mar, 2012     abstract   background & aims : greater than 75% patient that hospitalized in intensive care units has anemia. blood transfusion in icu is not recently and about 40-70% patients in intensive cares receive transfusion .blood transfusion is not safety and many of patients that received transfusion have some serious side effects. therefore to decrease such unwanted events there are some limits in blood transfusion. because there is no decreased in o2 extraction until hemoglobin above 9 gr/dl. therefore it seem the o2 extraction is the best categorized to blood transfusion need evaluation .in this study we want to determine the effect of blood transfusion on tissue o2 extraction in intensive care patients.   materials & methods : 30 non cardiac and active bleeding intensive care patients that has ordered blood transfusion by physician were selected . before and i hour after transfusion the veinuos and arterial samples obtained to determine sao2, svo2 and hg. and then datas were analysed.   result : the study showed that hemoglobin level and arterial o2 content (cao2) has increased in all patients after transfusion. in 66/66% the o2 extraction decreased after transfusion and in 26/66% patient it elevated. there was no significant correlation between hemoglobin level and o2 extraction after transfusion.   conclusion: although there was significant correlation between hg and o2 extraction before blood transfusion it was losedafter transfusion that similar studies are needed. it seems that the o2 extraction was decreased after transfusion without related to hg levels. in order to evalution intensive patients need to blood transfusion, hg and o2 extraction levels must be insighted together by nurses and physicians.   key words: o2 extraction, blood transfusion, intensive care patient.     address: nursing and midwifery faculty, urmia university of medical sciences,   tel : (+98) ) 0441)2754961   email: [email protected]   [1] nursing and midwifery faculty, urmia university of medical sciences.(correspond author)  [2] flvshyb special car e, faculty of medicin urmia university of medical sciences  [3] assistant professor, phdof nursing, facultyof nursingand midwifery, urmia university of medical sciences